/ Thesaurus / R Synonyms of restriction fragment Find synonyms for: Noun1. restriction fragment, fragmentusage: the fragment of DNA that is produced by cleaving DNA with a restriction enzymeWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language